Back to All Sections

RHS 120x80/10

Production class: hot finished (EN 10210-2)

Section geometry

RHS shape
Height (h):
120mm
Width (b):
80mm
Wall thickness (t):
10mm
Outer rounding (router):
15mm
Inner rounding (rinner):
10mm

Section properties

Moment of inertia (I):mm⁴
Y-axis:
6.095E6
Z-axis:
3.126E6
Elastic section modulus (Wel):mm³
Y-axis:
1.016E5
Z-axis:
78140
Plastic section modulus (Wpl):mm³
Y-axis:
1.312E5
Z-axis:
97300
Radius of gyration (i):mm
Y-axis:
41.77
Z-axis:
29.92
Plastic shear area (Av):mm²
Y-axis:
1397
Z-axis:
2096
Weight per meter:
27.42kg/m
Area (A):
3493mm²
Surface area per meter:
0.3742m²/m
Torsion constant (It):
6.876E6mm⁴

Profile overview for RHS 120x80/10

The RHS 120x80/10 is a structural steel cross-section utilized in commercial construction, industrial framing, and mechanical engineering. Manufactured as a hot finished section, it complies with EN 10210-2 dimensional standards, ensuring predictability in detailing and fabrication.Access to its exact geometric and statical properties is essential for 3D modeling and structural verification.

Geometry: This rectangular/square hollow section is defined by a depth of 120 mm, a width of 80 mm, and a uniform wall thickness of 10 mm. With a cross-sectional area of 3492.699082 mm² and a linear mass of 27.41768779 kg/m, the RHS 120x80/10 offers a distinct stiffness-to-weight ratio for both column (axial) and beam applications.

Section properties: For design of bending, the major and minor axis properties dictate the member's structural capacity. The strong-axis moment of inertia (Iy) of 6095000 mm⁴ governs major deflection and serviceability limits. To calculate the ultimate bending resistance, engineers may utilize the strong-axis plastic section modulus of 131200 mm³. For lateral stability and column buckling verifications, the weak-axis moment of inertia (Iz) provides 3126000 mm⁴ of lateral stiffness.

Advanced analysis: For complex load cases, the RHS 120x80/10 provides a y-axis shear area (at strong bending axis) of 1397.079633 mm² for web shear verification and a torsion constant of 6876000 mm⁴ for calculating rotational twist under eccentric loading.